The country's first genetically engineered hepatitis-B vaccine produced and developed by Hyderabad-based Shantha biotecnics was commercially marketed on
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/indias-first-hepatitis-b-vaccine-marketed
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/financial-express-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health